a car uses 57 liters of gasoline for every 644 kilometers traveled. ittakes 8 hours to use all the gasoline in the tank. what is the average speed of the car during the trip?

F. 11.3 km/h
G. 80.5km/h
H. 7.125 km/h
J. 456 km/h

pls explian how to get the answer